Nonstop flight route between Harrisburg, Pennsylvania, United States and Alma, Michigan, United States:
Departure Airport:

Arrival Airport:

Distance from MDT to AMN:
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- About this route
- MDT Airport Information
- AMN Airport Information
- Facts about MDT
- Facts about AMN
- Map of Nearest Airports to MDT
- List of Nearest Airports to MDT
- Map of Furthest Airports from MDT
- List of Furthest Airports from MDT
- Map of Nearest Airports to AMN
- List of Nearest Airports to AMN
- Map of Furthest Airports from AMN
- List of Furthest Airports from AMN
About this route:
A direct, nonstop flight between Harrisburg International Airport (MDT), Harrisburg, Pennsylvania, United States and Gratiot Community Airport (AMN), Alma, Michigan, United States would travel a Great Circle distance of 462 miles (or 743 kilometers).
A Great Circle is the shortest distance between 2 points on a sphere. Because most world maps are flat (but the Earth is round), the route of the shortest distance between 2 points on the Earth will often appear curved when viewed on a flat map, especially for long distances. If you were to simply draw a straight line on a flat map and measure a very long distance, it would likely be much further than if you were to lay a string between those two points on a globe. Because of the relatively short distance between Harrisburg International Airport and Gratiot Community Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | MDT / KMDT |
Airport Name: | Harrisburg International Airport |
Location: | Harrisburg, Pennsylvania, United States |
GPS Coordinates: | 40°11'35"N by 76°45'47"W |
Area Served: | Harrisburg, Pennsylvania |
Airport Type: | Public |
Elevation: | 310 feet (94 meters) |
# of Runways: | 1 |
View all routes: | Routes from MDT |
More Information: | MDT Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | AMN / KAMN |
Airport Name: | Gratiot Community Airport |
Location: | Alma, Michigan, United States |
GPS Coordinates: | 43°19'19"N by 84°41'17"W |
Area Served: | Alma, Michigan |
Operator/Owner: | City of Alma & County of Gratiot |
Airport Type: | Public |
Elevation: | 754 feet (230 meters) |
# of Runways: | 2 |
View all routes: | Routes from AMN |
More Information: | AMN Maps & Info |
Facts about Harrisburg International Airport (MDT):
- Harrisburg International Airport (MDT) currently has only 1 runway.
- Despite the closure of Olmsted AFB in 1969, the US Air Force continues an Air National Guard presence at Harrisburg in the form of Harrisburg Air National Guard Station and the Pennsylvania Air National Guard's 193rd Special Operations Wing, an Air Force Special Operations Command -gained unit flying the EC-130 Commando Solo aircraft.
- The furthest airport from Harrisburg International Airport (MDT) is Margaret River Airport (MGV), which is located 11,654 miles (18,755 kilometers) away in Margaret River, Western Australia, Australia.
- The closest airport to Harrisburg International Airport (MDT) is Capital City Airport (HAR), which is located only 5 miles (8 kilometers) WNW of MDT.
- The Middletown Air Depot at Olmsted provided logistical and maintenance support of military aircraft until it closed in 1969.
- Because of Harrisburg International Airport's relatively low elevation of 310 feet, planes can take off or land at Harrisburg International Airport at a lower air speed than at airports located at a higher elevation. This is because the air density is higher closer to sea level than it would otherwise be at higher elevations.
Facts about Gratiot Community Airport (AMN):
- Gratiot Community Airport (AMN) has 2 runways.
- For the 12-month period ending December 31, 2007, the airport had 9,500 general aviation aircraft operations, an average of 26 per day.
- The furthest airport from Gratiot Community Airport (AMN) is Margaret River Airport (MGV), which is located 11,192 miles (18,011 kilometers) away in Margaret River, Western Australia, Australia.
- The closest airport to Gratiot Community Airport (AMN) is Mount Pleasant Municipal Airport (MOP), which is located 21 miles (34 kilometers) N of AMN.
- Because of Gratiot Community Airport's relatively low elevation of 754 feet, planes can take off or land at Gratiot Community Airport at a lower air speed than at airports located at a higher elevation. This is because the air density is higher closer to sea level than it would otherwise be at higher elevations.